#663A18#663A18

#663A18 is a dark, moderate orange. Relative luminance 0.059; OKLCH L 39.6% C 0.078 H 55.5°. Best body text is #FFFFFF at 9.62:1 contrast (WCAG AA passes).

Color values

HEX	#663A18
RGB	rgb(102, 58, 24)
HSL	hsl(26, 62%, 25%)
HSV	hsv(26, 76%, 40%)
CMYK	cmyk(0%, 43.1%, 76.5%, 60%)
CIE-LAB	lab(29.20, 16.31, 28.65)
CIE-LCH	lch(29.20, 32.97, 60.36°)
OKLab	oklab(39.57% 0.0442 0.0644)
OKLCH	oklch(39.57% 0.078 55.5)
XYZ	xyz(7.1580, 5.9176, 1.6292)
Luminance	0.0592 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663A18 #184466

analogous

#66181D #663A18 #666118

triadic

#663A18 #18663A #3A1866

tetradic

#663A18 #1D6618 #184466 #611866

square

#663A18 #1D6618 #184466 #611866

split-complementary

#663A18 #186661 #181D66

monochromatic

#190E06 #341E0C #663A18 #985624 #C9722F

Accessibility & contrast

On white

9.62

#663A18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#663A18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663A18

9.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663A18	#FFFFFF	#000000	##FFFFFF
##663A18	1.00	9.62	2.18	9.62
#FFFFFF	9.62	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#473F14

Deuteranopia (green-blind)

#514918

Tritanopia (blue-blind)

#703133

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #663a18;
/* rgb */ color: rgb(102, 58, 24);
/* oklch */ color: oklch(39.6% 0.078 55.5);

Tailwind

colors: {
  custom: {
    50: '#967057',
    500: '#663a18',
    950: '#000000',
  },
}

SCSS

$custom: #663a18;
$custom-light: #967057;
$custom-dark: #000000;

JSON

{
  "hex": "#663a18",
  "rgb": {
    "r": 102,
    "g": 58,
    "b": 24
  },
  "hsl": {
    "h": 26.154,
    "s": 61.905,
    "l": 24.706
  },
  "oklch": {
    "l": 0.39573,
    "c": 0.07808,
    "h": 55.5
  },
  "luminance": 0.05917
}

Semantic roles & 50–950 ramp

primary

#663A18

secondary

#3E739C

accent

#9EE543

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0703

muted

#7E7A78

Preview Lab

Preview with #663A18

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →